Gearing for sawmills.



E. H. CHANDLER. f GEARING FOR SAWMILLS,

APPLICATION FILED MAR. 27, 1908. 94 ,335 Patent/ed Jan 11,1910.

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GEARING FOR SAWMILLS.

I APPLIOATIOF FILED MAB-27, 1908. v

I Patented Jan 11,1910. 2 SHEETSSHEBT 2- Jjj v I I I 25 nocntoz .w I V 32 Emanuel #(fiandlev? Gum EMANUEL HICKMAN CHANDLER, F BROOKI-IAVEN,MISSISSIPPI.

GEARING FOR SAWMILLS.

Specification of Letters Patent.

Patented Jan. 11, 1910.

Application filed March 27, 1908. Serial No. 423,661.

To all whom 'it may concern:

Be it known that I, EMANUEL HIOKMAN CHANDLER, a citizen of the UnitedStates of America, residing at Brookhaven, in the county of Lincoln andState of Mississippi, have invented new and useful Improvements inGearing for Sawmills, of which the following is a specification.

This invention relates to gearing for saw mills, and one of theprincipal objects of the same is to provide simple and etlicient meansfor quickly moving and reversing the log carriage.

Another object of the invention is to provide simple and improved meansfor shifting a friction wheel into contact with a pair of pulleys, oneof which is rotated in one direction and the other in the oppositedirection so that the pinion carried by the shaft of the friction wheelmay be rotated in either direction, depending upon which ,one of thepulleys said friction wheel is thrown into contact with to move the logcarriage in one direction or the other.

These and other objects may be attained by means of the constructionillustrated in the accompanying drawing, in which,

Figure 1 is a plan view of a saw mill made in accordance with myinvention. Fig. 2 is a longitudinal section view on the line 22 ofFig. 1. Fig. 3 is a transverse sectional view on the line 33 of Fig. 1.Fig. 4 is a longitudinal section on the line 4-4 of Fig. 1.

Referring to the drawing for a more specific description of myinvention, the numeral 1 designates the saw frame in which is mountedthe driving shaft or saw arbor 2 journaled in boxes 3 at the top of theframe. On the end of the driving shaft 2 is a driving pulley 4, andintermediate the ends of said shaft is a pulley 5 which is connected bya belt 6 to a small pulley 7 on a transmission shaft 8 journaled inboxes 9 at the top of the frame 1. The shaft 8 is provided with a pulley10. An intermediate shaft 11 mount ed in bearings 12 and 13 on the frame1 is provided with a friction pulley 14. The bearings 12 and 13 areprovided with slots 15, and the shaft 11 is thus adjustable. On thedriving shaft 2 is a friction pulley 17. A driven shaft 18 is mounted ina bearing 19 underneath the top bars of the frame and at one sidethereof, the opposite end of said shaft being mounted in a slide 20mounted in a guide groove 21 formed in a bar 22. Se-

cured to opposite sides of the bar 22 are cleats 23 which aid in forminga guideway for the slide 20. On the inner end of the shaft 18 is a largefriction wheel 24 which is adapted to be thrown into contact with thepulley 14 when it is desired to be rotated in one direction and throwninto contact with the pulley when it is desired to rotate the saidfriction wheel 24 in the opposite direction. Connected to the slide is alever 25 pivoted at 26 to the slide 20 and fulcrumed at 27 upona'bracket 28 secured to the frame 1. An adjusting bolt 29 extendsthrough the bars of the frame at one end thereof, said bolt serving tohold the bracket 28 in place, and the head of said bolt bearing againstthe underside of the bar 22, while the body of the bolt passes through aslot 30 in the slide 20. On the outer endof the shaft 18 is a pinion 31which engages a gear Wheel 32 on a cable roller 33 designed to operatethe log carriage. The saw is designated a.

The operation of my invention may be briefly described as follows: Thelever 25 is operated to move the friction wheel 24 into engagement withthe pulley 10 or to push the friction wheel 24 into contact with thepulley 14 and to push said pulley 14 into contact with the frictionpulley 17 on the driving shaft 2, the slots 15 in the bearing 13permitting this movement. Whenever it is desired to adjust the shaft 18and the friction wheel 24 carried thereby up toward the pulleys 10 and14, the nut on the bolt 29 is tightened up, the result being that theshaft 18 is raised. I

My invention is of simple construction, requires little belting tooperate the same, is quick and reliable in action and is very efficientin use.

Having thus described the invention, what is claimed as new, is

1. The combination of a frame, a driving shaft mounted on the frame, apulley on said shaft, a transmission shaft mounted on the frame, apulley mounted on said shaft, a belt passing over said pulleys, afriction pulley mounted on each of said shafts, an intermediate shaft, afriction pulley on said intermediate shaft, a driven shaft mountedintermediate the driving shaft and the transmission shaft, a frictionwheel carried by said driven shaft, a bar at one side of the frame, aslide secured in said frame, said driven shaft being mounted at one endin the bar and near the opposite end in said slide, a lever for movingsaid slide, and a bolt for adjusting the friction Wheel on said drivenshaft toward and from the friction pulleys on the transmission shaft andthe intermediate shaft.

2. In a saw mill gearing, the combination of a frame, a driving shaft, atransmission shaft, a friction pulley on each of said shafts, a beltpassing over the friction pulleys on said shafts, an intermediate shaft,a friction pulley mounted upon said shaft, a driven shaft, a frictionpulley on said driven shaft, means for moving the friction pulley on thedriven shaft into and out of contact with said friction pulleys on thetransmission shaft and the intermediate shaft, said means comprising aslide in Which the driven shaft is mounted, and a lever for moving saidslide.

3. In an apparatus of the character described, the combination With aframe, a driving shaft on the frame, a driven shaft on the frame,friction pulleys on said shafts, a countershaft driven by said driveshaft, a friction pulley 011 said countershaft, a friction pulleybetween the pulleys 011 the driving and driven shafts, and means forshifting the driven shaft to contact the pulley on the driven shaft Witheither the last mentioned friction pulley or the friction pulley on thecountershaft.

In testimony whereof I affix my signature in presence of two Witnesses.

EMANUEL III'CKMAN CHANDLER.

lVitnesses L. H. BAGGETT, F. F. BECKER.

